Changes in ground-water quality resulting from surface coal mining of a small watershed in Jefferson County, Ohio

by Hren, Janet.
Published: U.S. Dept. of the Interior, Geological Survey ; Open-File Services Section, Western Distribution Branch, 1986

A statistical approach to evaluate the relation of coal mining, land reclamation, and surface-water quality in Ohio

by Hren, Janet.
Published: U.S. Dept. of the Interior, Geological Survey ; Open-File Services Section, Western Distribution Branch, U.S. Geological Survey, 1984

A statistical approach to evaluate the relation of coal mining, land reclamation, and surface-water quality in Ohio

by Hren, Janet,
Published: U.S. Geological Survey, 1984

Measurement of the reaeration coefficients of the North Fork Licking River at Utica, Ohio by radioactive tracers

by Hren, Janet,
Published: U.S. Geological Survey, 1983

Water-quality data-collection activities in Colorado and Ohio : phase I, inventory and evaluation of 1984 programs and costs

Published: Dept. of the Interior, U.S. Geological Survey ; Open-File Services Section, Western Distribution Branch ; Text Products Section, Eastern Distribution Branch, 1985

Water-quality data-collection activities in Colorado and Ohio

Published: U.S. G.P.O. ; For sale by the Distribution Branch, Text Products Section, U.S. Geological Survey, 1987